Answer:
C) Bacteria accumulated in these regions because they were areas with the highest oxygen release.
Explanation:
Below is the complete question:
Theodor W. Engelmann shone light through a prism onto algae, exposing segments to various light wavelengths. He introduced aerobic bacteria and observed where they gathered, noting that the most substantial clusters occurred where red and blue light shone.
What conclusion did Engelmann draw about bacteria gathering in the red and blue regions?
A) Bacteria released an excess of carbon dioxide in these regions.
B) Bacteria gathered there due to increased temperatures from red and blue light.
C) Bacteria clustered in these regions because oxygen release was highest.
D) Bacteria are drawn to red and blue light, making these wavelengths more reactive than others.
E) Bacteria congregated in these areas because their temperatures rose due to heightened photosynthesis.
The most effective segment of white light for photosynthesis is the blue and red portions. Consequently, these sections must have the greatest oxygen output due to the highest rates of photosynthesis.
Aerobic bacteria thrived in regions lit by red and blue light because those areas were associated with maximum oxygen production linked to high rates of photosynthesis.
The correct choice is C.
Answer:
Ethylene. (Ans. D)
Explanation:
Ethylene controls the aging and ripening processes in plants. While many fruits and vegetables generate small amounts of ethylene, climacteric fruits like bananas produce larger quantities. This ethylene release accelerates respiration, triggers more ethylene production, and causes changes in color and flavor.
Therefore, when transporting green bananas over long distances to stores, the ethylene gas should be removed from their surrounding environment.
The leaves would be unable to release glucose.
The response is the digestive system!
The urchin's body cavity is predominantly occupied by the digestive system.
